Should Mummies be sent back to their Homeland, or rest in display at the museum? Are there ethical or moral considerations that must be explored?

http://www.hmns.org/index.php?option=com_content&view=article&id=124&Itemid=127

and

http://www.mfah.org/exhibitions/tutankhamun-golden-king-and-great-pharaohs/q-king-tut-curator/
Should these mummies be sent back to their homeland, in this case, Egypt or rest in display at the museum? Are there ethical or moral considerations that must be explored? What is the moral/ ethical or legal obligations of these artifacts?

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